Transcutaneous Intraluminal Impedance Measurement for Minimally Invasive Monitoring of Gastric Motility: Validation in Acute Canine Models

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dc.contributor.authorPoscente, Michael D.
dc.contributor.authorWang, Gang
dc.contributor.authorFilip, Dobromir
dc.contributor.authorNinova, Polya
dc.contributor.authorMuench, Gregory
dc.contributor.authorYadid-Pecht, Orly
dc.contributor.authorMintchev, Martin P.
dc.contributor.authorAndrews, Christopher N.
dc.date.accessioned2018-09-27T11:34:21Z
dc.date.available2018-09-27T11:34:21Z
dc.date.issued2014-12-09
dc.date.updated2018-09-27T11:34:20Z
dc.description.abstractTranscutaneous intraluminal impedance measurement (TIIM) is a new method to cutaneously measure gastric contractions by assessing the attenuation dynamics of a small oscillating voltage emitted by a battery-powered ingestible capsule retained in the stomach. In the present study, we investigated whether TIIM can reliably assess gastric motility in acute canine models. Methods. Eight mongrel dogs were randomly divided into 2 groups: half received an active TIIM pill and half received an identically sized sham capsule. After 24-hour fasting and transoral administration of the pill (active or sham), two force transducers (FT) were sutured onto the antral serosa at laparotomy. After closure, three standard cutaneous electrodes were placed on the abdomen, registering the transluminally emitted voltage. Thirty-minute baseline recordings were followed by pharmacological induction of gastric contractions using neostigmine IV and another 30-minute recording. Normalized one-minute baseline and post-neostigmine gastric motility indices (GMIs) were calculated and Pearson correlation coefficients (PCCs) between cutaneous and FT GMIs were obtained. Statistically significant GMI PCCs were seen in both baseline and post-neostigmine states. There were no significant GMI PCCs in the sham capsule test. Further chronic animal studies of this novel long-term gastric motility measurement technique are needed before testing it on humans.
dc.description.versionPeer Reviewed
dc.identifier.citationMichael D. Poscente, Gang Wang, Dobromir Filip, et al., “Transcutaneous Intraluminal Impedance Measurement for Minimally Invasive Monitoring of Gastric Motility: Validation in Acute Canine Models,” Gastroenterology Research and Practice, vol. 2014, Article ID 691532, 9 pages, 2014. doi:10.1155/2014/691532
dc.identifier.doihttps://doi.org/10.1155/2014/691532
dc.identifier.urihttp://hdl.handle.net/1880/108205
dc.language.rfc3066en
dc.rights.holderCopyright © 2014 Michael D. Poscente et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
dc.titleTranscutaneous Intraluminal Impedance Measurement for Minimally Invasive Monitoring of Gastric Motility: Validation in Acute Canine Models
dc.typeJournal Article
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